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Eigen mode solver for microwave transmission lines
/en/research/publications/eigen-mode-solver-for-microwave-transmission-lines
The electromagnetic properties of microwave transmission lines can be described using Maxwell’s equations in the frequency domain. Applying a finite-volume scheme results in an algebraic eigenvalue…
Ticket zum neuen Job in der Wahlheimat
/en/media-center/media-review/ticket-zum-neuen-job-in-der-wahlheimat
Als einzigartiges Erfolgsprojekt, das sich permanent am aktuellen Bedarf der Unternehmen orientiert und sich durch seine sehr große Nähe zum Arbeitsmarkt auszeichnet, charakterisierte der Vorsitzende…
SiGe MMIC’s - on the Current State-of-the-Art
/en/research/publications/sige-mmics-on-the-current-state-of-the-art
In recent years, the frequency limits of SiGe Heterostructure Bipolar Transistors (HBTs) have been extended to frequencies above 50 GHz. This opens new perspectives for Si-based monolithic…
Stable operation of InGaAs/InGaP/AlGaAs (λ = 1020 nm) laser diodes
/en/research/publications/stable-operation-of-ingaasingapalgaas-lambda-1020-nm-laser-diodes
The facet degradation of InGaAs/GaAs/AlGaAs ridge waveguide (RW) laser diodes was suppressed by replacing the AlGaAs waveguide layers with a InGaP lattice matched to GaAs. The long-term behaviour of…
Nonlinear modeling of SiGe HBTs up to 50 GHz
/en/research/publications/nonlinear-modeling-of-sige-hbts-up-to-50-ghz
A new large-signal model for SiGe heterostructure bipolar transistors (HBT’s) is presented that includes nonideal leakage currents, Kirk-effect, and thermal behavior. The parameters are extracted…
FDTD Analysis of Submillimeter-Wave CPW with Finite-Width Ground Metallization
/en/research/publications/fdtd-analysis-of-submillimeter-wave-cpw-with-finite-width-ground-metallization
The dispersion and attenuation characteristics of conductor-backed coplanar transmission lines with finite-width ground metallizations are studied in the frequency range up to 1 THz. The…
A physics-based model of hyperabrupt varactors for nonlinear transmission line applications
/en/research/publications/a-physics-based-model-of-hyperabrupt-varactors-for-nonlinear-transmission-line-applications
This article presents a physics-based varactor-diode model for exponentially graded doping profiles. The capacitance–voltage characteristic and the bias dependence of the series resistance are…
Low-dispersion thin-film microstrip lines with cyclotene (benzocyclobutene) as dielectric medium
/en/research/publications/low-dispersion-thin-film-microstrip-lines-with-cyclotene-benzocyclobutene-as-dielectric-medium
We report on thin-film microstrip lines (TFMSLs) fabricated on low-resistivity Si with polymerized cyclotene as the dielectric between signal and ground conductor, all on top of the wafer.…
Entanglement dynamics of photon pairs and quantum memories in the gravitational field of the earth
/en/research/publications/entanglement-dynamics-of-photon-pairs-and-quantum-memories-in-the-gravitational-field-of-the-earth
We investigate the effect of entanglement dynamics due to gravity – the basis of a mechanism of universal decoherence – for photonic states and quantum memories in Mach-Zehnder and Hong-Ou-Mandel…
Correlating Interface and Border Traps With Distinctive Features of C–V Curves in Vertical Al2O3/GaN MOS Capacitors
/en/research/publications/correlating-interface-and-border-traps-with-distinctive-features-of-c-v-curves-in-vertical-al2o3gan-mos-capacitors
In this article, we present an analysis of the correlation between interface traps (ITs) and border traps (BTs) on distinctive features of C–V curves in vertical Al2O3/gallium-nitride (GaN) MOS…